Adapter to Plug Trailer 7-Way Into 4-Way on Vehicle
Updated 01/05/2026 | Published 09/23/2024
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Question:
I have a 7-way plug on my camper how do I get it into a four-way plug on my 2016 Kia Soul
asked by: Dennis
Expert Reply:
Hey Dennis,
If you aren't looking to use your camper's electric brakes and just want the standard lighting functions from the 4-way, all you'll need is an adapter:
- Adapter 4 Way to 7-Blade RV Connector # C96KR
You'll just plug your 4-way into this, and it will allow you to tow your trailer with just the lighting functions needed; you can just leave the added wires as-is or cut them off as you won't be using them. However, if you do want to utilize your trailer's electric brakes, you'll need the Universal Installation Kit for Trailer Brake Controller # ETBC7.
This kit has everything needed to give your Kia a fully-functioning 7-way so you can use a trailer brake controller such as the Prodigy P2 Trailer Brake Controller # 90885.
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on Trailer Brake Controller
Jerred H.
1/5/2026
Hey Dennis, how did things go with connecting your camper to the 4-way on your Kia Soul? Your update could make it easier for others trying to match a 7-way plug to a smaller vehicle.